All data are in degrees Fahrenheit

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Water temperature in Holyhead

Detailed information about the current water temperature in Holyhead. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Holyhead now

52.8

°F

May 9, 08:07

Trend:

increasing

Yesterday:

52.4°F

Tomorrow:

52.8°F

Sunrise:

05:30

Sunset:

21:01

Day Length:

15 h. 31 min.

Holyhead in May

Minimum:

47.9°F

Average:

49.3°F

Maximum:

50.4°F

Sea water temperature in Holyhead today

As of now, in Holyhead, the water temperature is 52.8°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 2.6°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 52.1°F on 2022, while the historical minimum was 48.6°F on 2015.

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 53.2°F, with minimum temperature starting at 52.8°F, while the maximum might reach 53.7°F.

Daily water temperature in Holyhead

Date Current Year

actual* / forecast**

last year 10 years average
Apr 25 50.3°F 49.9°F 49.0°F
Apr 26 50.2°F 49.9°F 49.0°F
Apr 27 51.4°F 49.9°F 49.0°F
Apr 28 50.5°F 50.2°F 49.0°F
Apr 29 50.3°F 50.0°F 49.0°F
Apr 30 50.6°F 50.0°F 49.1°F
May 1 51.2°F 50.1°F 49.3°F
May 2 51.8°F 49.9°F 49.3°F
May 3 51.5°F 49.8°F 49.4°F
May 4 51.5°F 49.7°F 49.6°F
May 5 51.7°F 49.8°F 49.9°F
May 6 51.9°F 50.7°F 49.9°F
May 7 51.5°F 50.7°F 50.0°F
May 8 52.4°F 50.5°F 49.8°F
May 9 52.8°F 51.1°F 50.2°F
May 10 52.8°F 51.0°F 50.2°F
May 11 52.8°F 51.0°F 50.2°F
May 12 53.1°F 51.2°F 50.5°F
May 13 53.2°F 51.4°F 50.6°F
May 14 53.3°F 51.4°F 50.7°F
May 15 53.5°F 52.4°F 50.9°F
May 16 53.7°F 53.5°F 51.1°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Holyhead by month

In an average year, Holyhead offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Holyhead was recorded on September 7, 2023, reaching a 63.3°F. While the coldest temperature occurred on March 9, 2018, dipping to 43.0°F. The average readings by season are 48.6°F in Winter, 48.4°F in Spring, 57.8°F in Summer, and 57.8°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Caernarfon 54.0°F 19mi
Bangor 52.3°F 21mi
Conwy 53.8°F 33mi
Douglas 51.9°F 59mi
Aberystwyth 53.8°F 66mi

* current water temperature in this city

** straight line distance from Holyhead